D Status Codes - Overview - Vaillant ecoTEC exclusive 627 Installation And Maintenance Instructions Manual

Code Parameter
D.118 CO sensor fault number
D.132 Multi-occupancy
D.145 Flue gas monitoring
Status codes – Overview
D
Status code Parameter
Heating mode
S.00 Heating: No heat demand
Heating mode: Fan start-up
S.01
S.02 Heating mode: Pump pre-run
S.03 Heating mode: Ignition
S.04 Heating mode: Burner on
S.05 Heating mode: Pump/fan overrun
S.06 Heating mode: Fan overrun
S.07 Heating mode: Pump overrun
S.08 Heating mode: Anti-cycling time
S.09 Heating mode: Measuring program
DHW mode
S.10 DHW demand
S.11 DHW mode: Fan start-up
S.13 DHW mode: Ignition
S.14 DHW mode: Burner on
S.15 DHW mode: Pump/fan overrun
S.16 DHW mode: Fan overrun
S.17 DHW mode: Pump overrun
S.19 DHW mode: Measuring program
Cylinder charging mode
S.20 DHW demand
S.21 DHW mode: Fan start-up
S.22 DHW mode: Pump pre-run
S.23 DHW mode: Ignition
S.24 DHW mode: Burner on
50
Values
Unit
Min. Max.
–
Current value
–
0 1
–
0 1
Installation and maintenance instructions ecoTEC exclusive 0020193966_04
Increment, select, explanation
1: Heater short circuit
2: Heater open circuit
3: Heater temperature control fault
4: Heater temperature plausibility
check not OK
5: Sensor short circuit/open circuit
6: Reference resistance measure-
ment not OK
7: Sensor impedence too high
8: Standby reference resistance not
OK
9: EEPROM error
10: Sensor open circuit
11: Not used
12: Sensor plausibility test fault
13: Electrical power consumption
too low
14: Electrical power consumption
too high
15: Reference voltage too low
16: Reference voltage too high
0: Off
1: On
0: Off
1: On
Meaning
Heating: No heat demand
Heating mode: Fan start-up
Heating mode: Pump prerun
Heating mode: Ignition
Heating mode: Burner on
Heating mode: Pump/fan overrun
Heating mode: Fan overrun
Heating mode: Pump overrun
Heating mode: Remaining anti-cycling time
Heating mode: Measuring programme
Domestic hot water requirement via impeller sensor
DHW mode: Fan start-up
DHW mode: Ignition
DHW mode: Burner on
DHW mode: Pump/fan overrun
DHW mode: Fan overrun
DHW mode: Pump overrun
DHW mode: Measuring programme
Domestic hot water requirement
DHW mode: Fan start-up
DHW mode: Pump prerun
DHW mode: Ignition
DHW mode: Burner on
Factory Own
setting setting
–
Not ad-
justable
0
1